I'll try to color idea, it's hard to make quest system understandable... but all quests should be doable. The desert doesn't have anything yet. Do you like the added battles?
Viewing post in Secret of the Basilisk (prototype) comments
The Help Water Lady quest doesn't work.
While it claims to need a cart like the First Stone quest, at the moment there is no means to obtain one for the former.
Due to the issues with water in the previous versions, I assumed that this meant that this quest is meant to activate water gathering, but that water gathering itself has not yet been implemented.